CD74HC173PWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd74hc173pwr",
  "title": "CD74HC173PWR",
  "brief": "Texas Instruments Flip Flops, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd74hc173pwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD74HC173PWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc173.pdf",
    "parts": {
      "symbol": "cd74hc173pwr.kicad_sym",
      "footprint": "cd74hc173pwr.kicad_mod",
      "model_3d": "cd74hc173pwr-etched.glb",
      "model_3d_plain": "cd74hc173pwr.glb",
      "model_3d_step": "cd74hc173pwr-etched.step",
      "model_3d_step_plain": "cd74hc173pwr.step",
      "lbr": "cd74hc173pwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C544791",
      "digikey": "296-12792-2-ND",
      "mouser": "595-CD74HC173PWR"
    },
    "distributor_check": {
      "checked_at": "2026-09-27T06:53:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-12792-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-CD74HC173PWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "~OE1",
        "type": "input",
        "description": "Active-low output enable 1; when HIGH, all Q outputs are forced to the high-impedance (three-state) condition regardless of flip-flop state."
      },
      {
        "number": "2",
        "name": "~OE2",
        "type": "input",
        "description": "Active-low output enable 2; when HIGH, all Q outputs are forced to the high-impedance (three-state) condition regardless of flip-flop state."
      },
      {
        "number": "3",
        "name": "Q0",
        "type": "tri_state",
        "description": "Three-state buffered output of flip-flop 0; VOH ≥ 3.84 V and VOL ≤ 0.33 V at IOH = -6 mA / IOL = 6 mA, VCC = 4.5 V, 85 °C; high-impedance when OE1 or OE2 is HIGH."
      },
      {
        "number": "4",
        "name": "Q1",
        "type": "tri_state",
        "description": "Three-state buffered output of flip-flop 1; VOH ≥ 3.84 V and VOL ≤ 0.33 V at IOH = -6 mA / IOL = 6 mA, VCC = 4.5 V, 85 °C; high-impedance when OE1 or OE2 is HIGH."
      },
      {
        "number": "5",
        "name": "Q2",
        "type": "tri_state",
        "description": "Three-state buffered output of flip-flop 2; VOH ≥ 3.84 V and VOL ≤ 0.33 V at IOH = -6 mA / IOL = 6 mA, VCC = 4.5 V, 85 °C; high-impedance when OE1 or OE2 is HIGH."
      },
      {
        "number": "6",
        "name": "Q3",
        "type": "tri_state",
        "description": "Three-state buffered output of flip-flop 3; VOH ≥ 3.84 V and VOL ≤ 0.33 V at IOH = -6 mA / IOL = 6 mA, VCC = 4.5 V, 85 °C; high-impedance when OE1 or OE2 is HIGH."
      },
      {
        "number": "7",
        "name": "CP",
        "type": "input",
        "description": "Clock input (shared by all four flip-flops); data is captured on the positive-going edge; minimum clock pulse width 16 ns at VCC = 4.5 V, 85 °C."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground supply reference; continuous current through GND pin must not exceed ±70 mA absolute maximum."
      },
      {
        "number": "9",
        "name": "E1",
        "type": "input",
        "description": "Data enable input 1; when HIGH, the Q output is fed back to the D input, forcing the flip-flop to retain its current state on the next clock edge."
      },
      {
        "number": "10",
        "name": "E2",
        "type": "input",
        "description": "Data enable input 2; when HIGH, the Q output is fed back to the D input, forcing the flip-flop to retain its current state on the next clock edge."
      },
      {
        "number": "11",
        "name": "D3",
        "type": "input",
        "description": "Data input for flip-flop 3; sampled on the positive-going clock edge when E1 = LOW and E2 = LOW and MR = LOW; VIH ≥ 3.15 V, VIL ≤ 1.35 V at VCC = 4.5 V."
      },
      {
        "number": "12",
        "name": "D2",
        "type": "input",
        "description": "Data input for flip-flop 2; sampled on the positive-going clock edge when E1 = LOW and E2 = LOW and MR = LOW; VIH ≥ 3.15 V, VIL ≤ 1.35 V at VCC = 4.5 V."
      },
      {
        "number": "13",
        "name": "D1",
        "type": "input",
        "description": "Data input for flip-flop 1; sampled on the positive-going clock edge when E1 = LOW and E2 = LOW and MR = LOW; VIH ≥ 3.15 V, VIL ≤ 1.35 V at VCC = 4.5 V."
      },
      {
        "number": "14",
        "name": "D0",
        "type": "input",
        "description": "Data input for flip-flop 0; sampled on the positive-going clock edge when E1 = LOW and E2 = LOW and MR = LOW; VIH ≥ 3.15 V, VIL ≤ 1.35 V at VCC = 4.5 V."
      },
      {
        "number": "15",
        "name": "MR",
        "type": "input",
        "description": "Master reset, active HIGH and asynchronous; forces all Q outputs LOW independent of clock, E1, E2, and D inputs; tpd (MR to output) max 44 ns at VCC = 4.5 V, 85 °C."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; HC types 2 V to 6 V, HCT types 4.5 V to 5.5 V; absolute maximum 7 V; decouple with 0.1 µF ceramic capacitor placed as close to pin as possible."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-sonnet-4-6",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-4-7",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 25,
        "cost_usd": 0.6222,
        "at": "2026-09-27T06:53:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hc173.pdf",
        "pages": 25,
        "sha256": "8e3cd2654a5626b0",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd74hc173pwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hc173pwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "31a23ca95c578f22a3c0913b8cb4de54d91fcdafc930c27c2cb90392bcd41326",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd74hc173pwr"
  ],
  "discovery_pitch": "CD74HC173PWR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "cd74hc173pwr.kicad_sym",
    "cd74hc173pwr.kicad_mod",
    "cd74hc173pwr.glb",
    "cd74hc173pwr.step",
    "cd74hc173pwr.lbr",
    "docs/hero.png",
    "docs/cd74hc173pwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
  }
}